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Finding the Third Proportional to 336 and 365.50

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Solution

The third proportional to 336 and 365.50 is: 397.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    336 : 365.50 = 365.50 : x
  2. Step 2: Convert to fraction form
    336/365.50 = 365.50/x
  3. Step 3: Cross multiply
    336x = 365.50 × 365.50
  4. Step 4: Simplify right side
    336x = 133,590.25
  5. Step 5: Solve for x
    x = 133,590.25/336
  6. Step 6: Final answer
    x = 397.59

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.